milburn



M e h s e e h S 90 N. Dm. U B L I M D. G. n. d O M 0 m PHOTOGRAPHIGMAGAZINE CAMERA.

No. 497,525. Patented May 16,1893.

j Fifa l. I llllllxlllllLI.

(No Model.) 3 Sheets-Sheet 2.

G. D. MILBURN.

PHOTOGRAPHIG MAGAZINE CAMERA.

Patented May 16,1893. Rg. s.

(No Mode1.\ 3 Sheets- Sheet 3.

G. D. MILBURN.

PHOTOGRAPHIG MAGAZINE CAMERA.

No. 497,525. Patented May 16,1893.

f5.7 La 03. 5am,

UNITED STATES PATENT OFFICE.

GUSTAVE MILBURN, OF ROCHESTER, NE\V YORK, ASSIGNOR TO THE PHOTOMATERIALS COMPANY, OF SAME PLACE.

PHOTOGRAPHIC MAGAZINE-CAM ERA.

SPECIFICATION forming part of Letters Patent No. 497,525, dated May 16,1893.

Application filed July 14:, 1892. Serial No. 440,030. (No model.)

To @ZZ whom it may concern,.-

Beit known that I, GUsTAvE D. MILBURN, a citizen of the United States,residing at Rochester, in the county of Monroe, in the State of NewYork, have invented an Improved Magazine-Camera, of which the followingis a specification, reference being had to the accompanying drawings.

My invention rela-tes to improvements in Io the construction of magazinecameras, which unprovements are fully described and illustrated in thefollowing specification and the accompanying drawings,-the novelfeatures thereof being specified in the claims annexed to the saidspecification.

My improved magazine-camera is represented in the accompanying drawings,in Which-- .Figure lis a side-view. Fig. 2 is a plan zo view. Fig. 3 isa front view. Figeisafront view of the plate or film-carrier, detached.

5. is a transverse section of the same. Fig. 6 lsacentral longitudinalsection through the camera. Fig. 7 represents the cam and rod foroperating the curtain. Fig. S is a transverse section of the camera, onthe line 88, Fig. 6. Fig. 9 is a side view of the carrier-shiftingmechanism,-the outer wall of the camera being broken away. Fig. lOrepresents the shifting mechanism detached. Fig. 1l is a horizontalsection of the camera, on line 11-ll, Fig. 6, showing the parts be- 10Wthat line. Fig. l2 represents the back of the camera detached, showingthe compartment for uneXposed plates with a carrier with plate or filmtherein. Fig. 13 is a vertical section through one of the carriers andthe camshaft, representing the position of the cams at the time of thedelivery of the carrier into the storage compartment. Fig. 11 is asection on the line lei-14, Fig. 12.

My improved magaZine-camera is designed to use either glass-plates ortransparent films of any preferred kind,-the plates or films beinginserted in notched carriers, which are used in connection with certaindevices in the camera to secure the shifting of the plates or filmstherein.

My inventionis intended for use with any suitable usual lens andexposing shutter, and comprises two compartments, one, A, Fig. 6,

in which the films are carried previous to the exposure under a pressurewhich constantly forces them forward, and another, B, into which theexposed plates are shifted one after the other, by the partial rotationof a shaft C, operated from the exterior of the camera by a key, D. Theshaft O is provided with one or more notched camsfwhich, after exposureact on the lower edge of the front plate-car- 6o rier and raise it up sothat the notches in its edges coincide with certain stops on the camera,so that it may be pressed forward bythe spring actuated frames I I inthe compartment A, into position where it becomes engaged by a frame Jwhich swings on the shaft C, by which it is carried into the compartmentB.

My invention also contemplates various other details of theconstruction, all as here- 7o inafter more fully described.

The camera body is of any preferred shape or dimensions. The rear end ofthe camera is closed by a back or hinged door E, which opens to permitthe insertion of the unexposed plates or films into the compartment A.The plates or films are placed in the carriers, F, Figs. Lt and 5, whichconsist of a sheet a of card or other suitable board, having arectangular frame h of similar material attached 8o to them on threesides, leaving one side unattached so that the lm c can be slid intoplace between the frame and the back of the carrier. Strips, c, ofsuitable material are interposed between the frame and the back of thecarrier to adapt the carriers to either glass-plates or films, thesestrips being made thicker for the carriers in which plates are used thanfor the film-carriers. It will be observed that the opposite edges ofthe back are 9o provided with notches or indentations, o 9*, Fig. 4,which are preferably four in number. The plate-carriers when placed inthe compartment A are pressed forward by any suitable spring actuatedframes, such for instance as those indicated atl in Fig. 6, the springsbeing marked H, forcing the front carrier against the stops n t', Figs.6, S, ll, l2 and la which prevent its forward movement until it has beenraised up by the cams on the shaft C, into the roo position indicated bythe dotted lines on Fig.

6, when it is engaged by the swinging frame J-by which it is shiftedforward and downward into the storage compartment B.

The frames I I, Fig. 6 are pivoted to the back E at d, and pressedforward against the reartilm-carrier, or a follower in contacttherewith, by the springs II H. The frame J is swung forward anddownward, into the position represented at J', Fig. 6, by the turning ofthe shaft C by the key D. The construetion is such that the shaft Cmakes a part of a rotation, so as to allow the cams f to raise the frontfilm-carrier, until the notches r correspond with the stops o, beforethe frame J is moved by the shaft.

g g are two fingers carried by the frame, and the upper edge of thefilm-carrier is forced between these lingers and the upper cross-har ofthe frame when the film carrier is elevated. The partial rotation of theshaft C before the frame J begins to move, raises the front carrier, sothat the notches r register with the stops o, when the front carrier ispressed forward by the springs or follower, and the upper edge of thecarrier is, by the continued movement of the shaft, inserted between thefingers g g and the -top cross-piece of the frame J. Then the frameswings, it consequently carries the carrier with it, the

top of the frame bearing against the rear side of the carrier, which isretained in place by the lingers bearing on its front side. Provision ismade for swinging these fingers outward from the frame at the extremityof its downward movement, by attaching them to a rock-shaft 7L having atone end an arm t', which comes in contact with the lug or stopjon thecamera body. The rock-shaft is mounted on the cross-bar of the frame insuitable eyes, and it is provided with a spring l which holds thefingers against the film-carrier. A metallic plate w forms the upperedge of the compartment A, or the whole of the compartment may be madeof sheet metal. The stops fu are attached to the edges of thecompartment on the vertical sides, and either two or four of these stopsmay be used. Suitable guides m may be attached to direct the lilmcarrier into the compartment B, or the side walls K may be extendedupward for this purpose. On the side walls are placed the springs n n,which are inclined inward at their upper ends forming the hooks o o sothat they yield outward when the film-carrier strikes against them, andthen engage over it so as to prevent its being shaken out of thecompartment. I have represented foursprings in the accompanyingdrawings, but two are sufficient. The springs may be attached on eitherthe inside or the outside of the walls K, or dispensed with entirely incase positively actuated means be employed to retain the carriers in thestorage chamber such as the sliding door Q hereinafter described.

In order to hold the carriers in the lower compartment, the sliding doorQ, Fig. 6, may be employed. This door is arranged to be moved backward,as indicated bythe full and esmas dotted lines', by the pins p p on theshaft C coming in contact with the upper corners of the door, justbefore the frame J delivers the carrier into the compartment. The dooris returned by a suitable spring, and being slightly inclined to thelower side R of the camera, it presses against the uppermost carrier,and in this way secures the carriers in place. The front of the door maybe corrugated or toothed. The door maybe arranged to slide on the bottomof the camera, or, preferably, it is contained in a case or drawer,which is made to slide entirelyoutof the compartm ent when the back E isopen, so that all the carriers containing exposed films, may be removedat once.

S represents the bottom of the drawer, and T the endwall of the sameopposite the door Q. Between the end-wall and the door, the drawer hasno sides, or if used they are made of thin sheet metal.

U is a cover to the rear part of the drawer, attached to the bottom bysuitable sides, and V is a spring in a suitable recess which acts on thearm or plate IV, and forces the door Q forward. The movement of the dooris limited by suitable stops.

In order to provide a cover or screen for the carriers in thecompartment B, I employ the movable frame D to which the curtain L Fig.G, is attached, which curtain lics normally over the compartment, B,but, at the time the frame J oscillates, is moved upward by the frameD', into the position indicated at L'. The frame D' is pivoted above theframe J, at o', Figs. 6 and S, and swings on such pivots, as indicatedby the full and dotted lines in Fig. (5. The movement of the frame D isobtained from the cam G on the shaft C, as indicated in Fig. 7,-the camG drawing down on the rod p pivoted to a crank-arm o" on the uppercross-bar s' of the frame D'. The rod p is attached to the side-wall ofthe compartment B at t', as indicated in Fig. 7. As the cam G revolves,it draws down on the rod p', and swings the frame from D' to D. Thismovement takes place just before the frame J is moved forward, so thatduring the period of its oscillation, the curtain occupies the positionL', out of the way of the frame. The curtain is attached at one end tothe lower cross-bar u', Fig. 6, of the frame D', and at the other end torod fu secured to the front wall K' of the compartment B. The use of themovable screen or curtain will dispense with the springs n.

In the construction represented in Fig. 9, a door X is pivoted withinthe lower compartment, and connected with the frame J by the links q q,so that the carriers are shifted lengthwise in the compartment,andretained in place by door X when at the extremity of its oscillatingmovement toward the lower compartment. The door is pivoted on atransverse rod cada coiled springt being applied to the rod in suchfashion as to swing the upper end of the door to the left hand in Fig.9.

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The springt is an ordinary spiral spring coiled about the rod s, andbearing at one end against the case of the camera, and at the otheragainst the door, so that the door receives from the spring a constanttendency to swing toward the right hand in Fig. 9. This spring serves toretain the frame J in the upright position indicated by the full lines.IVhen the frame is swung forward, the links and door occupy thepositions indicated by the dotted lines in Fig. 9, and the carrier isdelivered on the door from the frame, and is by the swinging motion ofthe door shifted lengthwise in the compartment against the wall T, whichis attached to the back E.

y y represent pins or studs which project from each side of the doorover the side-walls K of the lower compartment, which are cut away at dto permit the movement of the pins. One end of the links q may beslotted and pivoted with a spring as, which allows the door to yieldslightly as the carriers accumulate in the compartment.

rIhe door X is provided with a ledge u which prevents a carrier fromslipping above it. The upper edge of the door X is notched atc, Fig. Il,to permit the movement of the gripper-fingers g g. These notches arecntin the upper edge of the door X, opposite the gripper-fingers ofsufficient width and depth to permit the fingers to open away from thetop of the frame J when the arm t' comes in contact with the stopj asthe frame approaches the end of its swinging movement, which isrepresented at J, Fig. 9. The door protects the plates or films in thecarriers from light, and also retains the carriers in the compartment.The door may project some distance above the side-walls K withoutinterfering with the image on account of the Obliquity of the raysreceived from the lens.

The construction of the mechanism by which the frame J is operated fromthe shaft C,wil1 be understood from an examination of Figs. G, 9, lOand13. The shaft at first makes a partial rotation, while the notches h inthe cams f, Fig. 6, raise the foremost carrier. The frame J is thenswung forward and downward to J', after which the shaft continues torotate while the cams deliver the carrier into the storage compartment,as represented in Fig. I3. Any suitable mechanism may be employed tosecure these movements. In the accompanying drawings I have shown aconstruction in which the requisite movements of the shaft land frameare secured by means of a pivoted catch c', Figs. 9 and lO, engagingwith a notch d in the edge of the disk O,and a pin e', inserted in thedisk and projecting inward so as to bear against an extension of thearm. At the commencement of the movement of the shaft C, in thedirection indicated by the arrow in Fig. 9, the notch d occupies theposition represented in that figure. rlhe disk O turns with the shaft,until the notch arrives at d Fig. l0, when the catch c', which ispivoted on the frame J, and provided with a spring f', engages with thenotch, and the frame is caused to move with the shaft until the inclinedfront side of the catch g', comes in contact with the stationary pin orstop 7L', when the catch is disengaged from the notch, and the framebeing arrested, the shaft continues to rotate until the cam f hasdelivered the sheet into the storage compartment. At the end of themovement of the shaft, the notch d will have arrived at c Fig. 10, andthe pin c at c acts as a stop to prevent farther movement of the shaft.On the return motion the pin e bears against the extension of the frame,and restores the frame to its uprightposition. The disk, catch and stopare used on each side of the camera. The disk O is milled or serratedaround its edges, and a pivoted dog P is employed to prevent its beingturned backward during its move- `ment in either direction until suchmovement has been completed. By this device the operator is preventedfrom making a partial movement of the parts, since as the key cannot beturned backward, the forward movement in either direction must becompleted. The dog IJ is pivoted at t to the side of the compartment orto a platej thereon. Its point at the commencement of themovement of thedisk rests inthe notch m', but, as soon as the disk moves, the dogswings to the position P,the spring 7c holding the point against theedge of the disk. It will be obvious that in this position of the dog,the disk 0 cannot be turned backward, because the point of the dog willengage in the serrations and prevent reverse movement. When the disk hascompleted its 'forward movement, the pointof the dog will be carried bythe spring 7c into the notch n', and then on the return or reversemovement of the disk, the dog will be swung outward into the positionindicated at P, its point bearing against the serrations on the edge ofthe disk, and in this position it will prevent a reversal of the returnmovement. At. the end of the return movement, the dog, again swings intothe notch m', and, when the disk is again turned, it assumes theposition P, as before. This device may be used in connection with anycamera in which the plates or films are shifted by the oscillation of anoperating key or shaft. I may make the frame l) attached to the back dofthe carrier, of sheet gelatine, cut out to the proper shape and attachedto the back by gelatine or any other suitable cement.

In the construction represented in Fig. G, the carriers F are placed inthe compartment A, when the door or back E is open,-the springs forpressing the carriers forward being attached to the back. In this casethe upper wall of the camera may be provided with aremovable panel ordoor, I'I, Fig. G, through' which access may be had to the front of thecompartment A, to see that the carriers are properly placed, while inthe dark1'oom.

In a modification, the compartment A is attached to the back E,-theside-wall being ICO divided on the line I', Fig. 9. In this case theback E is hinged so that it can be reverted or turned entirely over, soas to afford free access to the compartment A,-the stops t; beingarranged to swing Outward for the purpose of introducing the carriers.This construction is represented in Figs. l2 and 14, in which thecompartment is shown as provided with metallic ribs or guides, w', onwhich the carriers travel, and the stops t* are supported by springs,x', so that they can yield outward When the carriers are introduced. Thesides of the compartment are slotted to permit the movements of thesprin stops.

Metallic ways y may be provided on which the carriers travel, and whichare slotted for the spring-stops.

Springs a', Figs. l0 and 13, may be applied to the upper part Of theshifting frame J, in place of the tin gers already described. Thesesprings engage with the upper end of the carrier, and retain it in placeuntil discharged from the frame by the Operation of the cams f.

The movement of the pivoted dog Pis ntilized to operate the tally diskQ', by means of the spring pawl R which engages with the teeth of thedisk, which is Onl y partially shown in full lines.

An opening is made in the side of the camera through which a series offigures indicating the number of exposures made, can be observed,-thedisk being placed close up to the wall, so as to exclude any light.

I claim- 1. The combination, in a magazine camera, of the compartment A,having stationary stops at its inner edges, adapted to contain a seriesof notched film-carriers, and provided with means for pressing thecarriers forward, the shaft C arranged across the camera near the innerlower corner of the compartment, and having one or more cams f adaptedto engage with the lower edge of the front carrier, and to elevate thesame, the oscillating frame J, pivoted on the shaft C, and provided witha device for engaging the upper edge of the front carrier, mechanism foroperating the swinging frame during a portion of the rotation of the camshaft, and the storage compartment l5 for exposed plates, substantiallyas described.

2. The combination, in a magazine camera, of the compartment A, havingstationary stops at its inner edges, adapted to contain a series ofnotched film-carriers, and provided with means for pressing the carriersforward, the shaft C arranged across the camera near the inner lowercorner of the compartment, and having one or more cams fadapted toengage with the lower edge of the front carrier, and to elevate thesame, the oscillating frame J, pivoted on the shaft C, and provided witha device for engaging the upper edge of the front carrier, mechanism foroperating the swinging frame during a portion of the rotation of thecam-shaft, the storage compartment B for exposed plates, the movablestorage-compartment-screen L and mechanism for operating the same fromthe cam-shaft, substantially as described.

3. The combination, in a magazine camera, of the transverse shaft C,having one or more carrier-separating cams f, the oscillatingcarrier-shifti11g-frame J, pivoted on the shaft, and suitable operatingmechanism connecting the shaft and the frame, whereby the cam receives apartial rotation while separating the front carrier before the framebegins to oscillate, substantially as described.

At. The combination, in a magazine camera, of the compartment A adaptedto contain a series of notched film-carriers, the transverse shaft Chaving one or more carrier-separating camsf, the oscillating carriershifting frame J, pivoted on the shaft and provided with a device forengaging the front carrier, the storage compartment B, and means fordisengaging the carrier from the frame upon its arrival at thecompartment B, substantially as described.

5. The combination, in a magazine camera, of a compartment provided withstationary stops on its inner edges, and adapted to contain a series ofnotched carriers, a second compartment located in front of and below theiirst, an oscillating shaft provided with means for sliding the notchedcarriers until the notches register with the stops, means for pressingthe carriers forward, an oscillating frame pivoted on the shaft whichreceives and delivers the carriers one by one into the secondcompartment, an oscillating door in the second compartment which shiftsthe carriers lengthwise in the second compartment, and suitableconnecting mechanism for operating the door, substantially as described.

GUSTAVE D. MILBURN.

Vitnesses:

JOHN A. ROBERTSON, GEO. B. SELDEN.

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